We live in FL, so it was about 85-degrees with full sun when we tried it on the patio as a trial when it arrived, and it worked perfectly. It did feel cooler under the umbrella, and the 10-mph breeze did nothing to make it flinch.
Opening and closing hardware uses big, durable plastic parts that are super easy to open and close - no struggling or pinching fingers to get it open or closed. The ribs are strong, with no flex or bending.
The umbrella material is soft and a bit stretchy feeling, but strong. Since the material isn't canvas, it's LIGHTWEIGHT, even with the bottom pole attached. Grandma or your little kid can carry it, no problem.